Update go.yml

.github/workflows/go.yml

@@ -19,7 +19,13 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v4
       with:
-        go-version: '1.20'
+        go-version: '1.21.2'
+
+    - name: Check Go version
+      run: go version
+
+    - name: Clean Go module cache
+      run: go clean -modcache
 
     - name: Build
       run: go build -v ./...